Strange mouse movement

Ok so I have been playing BF4 for a month now ever since I got myself a real PC. Everything has been completely smooth up until this week where about 1 week ago my mouse started having spasms and only in BF4. Not in desktop, in browser or any other games just BF4. What happens is at a random moment in game and I dont believe in deploy screen either, without doing any movements my mouse turns to the right or left more so the left side i think like a 180 just turns away from where im aiming and switches my weapon or gadget one slot up. From secondary to primary or Mortar in 4th slot to ammo in 3rd etc. Ive done everything to fix this, reinstalled the game and mouse driver with no luck. Im really starting to lose patience because whenever im in a damn firefight it moving and switching allows me to be killed when i haven't touched anything. I even tested this as well my going AFK and botting AFK both in a server and without my hand even on the mouse these spasms still seem to happen. Please help~! thanks